Adding testing endpoint

The twitch webhooks API requires a publicly available endpoint that is
protected by a valid SSL certificate. We will put this testing endpoint
up so we can start building out a chat subscription endpoint

Author: ProgrammingByPermutation

src/Nullinside.Api.TwitchBot/Controllers/TwitchWebHookController.cs

@@ -0,0 +1,32 @@
+using log4net;
+
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+
+namespace Nullinside.Api.TwitchBot.Controllers;
+
+/// <summary>
+/// testing
+/// </summary>
+[AllowAnonymous]
+[ApiController]
+[Route("[controller]")]
+public class TwitchWebHookController : ControllerBase {
+  /// <summary>
+  ///   The logger.
+  /// </summary>
+  private readonly ILog _log = LogManager.GetLogger(typeof(TwitchWebHookController));
+  
+  /// <summary>
+  /// testing
+  /// </summary>
+  /// <param name="stuff"></param>
+  /// <param name="token"></param>
+  /// <returns></returns>
+  [HttpPost]
+  [Route("chat")]
+  public IActionResult TwitchChatMessageCallback(string stuff, CancellationToken token) {
+    _log.Info(stuff);
+    return Ok(true);
+  }
+}